Contributions to the botany of the Yukon Territory
Print Book, English, [1901]
101-187 pages 11 plates 24 cm
19503882
1. An enumeration of the Hepaticae collected by R.S. Williams, 1898-1899, by Marshall A. Howe
2. An enumeration of the mosses collected by R.S. Williams
3. An enumeration of the Pteridophytes collected by R.S. Williams and J.B. Tarleton, by L.M. Underwood
4. An enumeration of the flowering plants collected by R.S. Williams and J.B. Tarleton, by N.L. Britton and P.A. Rydberg
From the Bulletin of the New York Botanical Garden, v. 2, no. 6